and the other question, on the board over pakistan and afghanistan, there's been some reporters, pakistan has been complaining about some forces crossing the border from afghanistan and attacking in pakistan and the yen response we've been getting is, you know, vague comments about how the boarder is porous. can you be more specific about exactly what's going on there? are these complaints valid? and what are you doing to try to address those issues? >> on the afghanistan-pakistani cross-border issues. they, again, on the border region, it's very, very rugged terrain. it is very, very porous, both ways, and some of those forces that reside in that area move across the area and have gone both ways back and forth. both the afghan security forces and the pakistani military forces coordinate our efforts along that border to be able to defeat those forces as effectively as we can but that -- it goes both ways and we have again done a pretty good job coordinating our efforts to defeat that threat. >> can you follow up on the reintegration question? the numbers, how many do you need to reintegra